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Fix a regression in test/CodeGen/X86/2007-04-24-VectorCrash.ll introduced

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by r43510. Gracefully handle constants with vector type that aren't
ConstantVector or ConstantAggregateZero.

llvm-svn: 43579
This commit is contained in:
Dan Gohman 2007-10-31 21:36:31 +00:00
parent 89dee120a1
commit a9d080508e
1 changed files with 3 additions and 4 deletions
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7
lib/VMCore/ConstantFold.cpp
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@ -716,10 +716,8 @@ Constant *llvm::ConstantFoldBinaryInstruction(unsigned Opcode,
} else if (const VectorType *VTy = dyn_cast<VectorType>(C1->getType())) {
const ConstantVector *CP1 = dyn_cast<ConstantVector>(C1);
const ConstantVector *CP2 = dyn_cast<ConstantVector>(C2);
assert((CP1 != NULL || isa<ConstantAggregateZero>(C1)) &&
"Unexpected kind of vector constant!");
assert((CP2 != NULL || isa<ConstantAggregateZero>(C2)) &&
"Unexpected kind of vector constant!");
if ((CP1 != NULL || isa<ConstantAggregateZero>(C1)) &&
(CP2 != NULL || isa<ConstantAggregateZero>(C2))) {
switch (Opcode) {
default:
break;
@ -747,6 +745,7 @@ Constant *llvm::ConstantFoldBinaryInstruction(unsigned Opcode,
return EvalVectorOp(CP1, CP2, VTy, ConstantExpr::getOr);
case Instruction::Xor:
return EvalVectorOp(CP1, CP2, VTy, ConstantExpr::getXor);
}
}
}